<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <form>
      <!-- 文本输入框 -->
      <input type="text" placeholder="请输入用户名" />
      <!-- 密码输入框 -->
      <input type="password" placeholder="请输入密码" />
      <!-- 数字输入框 -->
      <input type="number" placeholder="请输入数字" />
      <!-- 邮箱输入框 -->
      <input type="email" placeholder="请输入邮箱" />
      <!-- 日期输入框 -->
      <input type="date" placeholder="请输入日期" />
      <!-- 时间输入框 -->
      <input type="time" placeholder="请输入时间" />
      <!-- 文件上传 -->
      <input type="file" placeholder="请上传文件" />
      <!-- 搜索输入框 -->
      <input type="search" placeholder="请输入搜索内容" />
      <!-- 提交按钮 -->
      <input type="submit" value="提交" />
      <!-- 选择输入框 -->
      <input type="checkbox" />
      <input type="radio" name="111" />
      <input type="radio" name="111" />
    </form>
  </body>
</html>
